인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
Dissolved organic phosphorus (DOP) in diverse freshwater ecosystems ranges from 0.3 to 76 µg P l⁻¹. However, in a large lake DOP seems to vary within a narrow range, indicating near steady-state concentration of DOP. Major fraction of natural DOP seems to be composed of molecules less than 20,000 MW. Interestingly, a significant fraction of DOP has been reported to be refractory in freshwaters. Hydrolysis of DOP has been studied by using model substrates in aquatic ecosystems. Mechanisms and enzymes involved in DOP-hydrolysis have been understood. This approach however can not represent diverse components of DOP (i.e. large molecules vs small molecules). Recently, utilization of in situ DOP in bacterial fraction of lakewaters has been measured. Turnover times of in situ DOP were comparable to those reported by model substrates. This approach might be useful to study refractory DOP, utilization of DOP by bacteria, and production of DOP by microbial loop organisms. For the regeneration of DOP, much less information are available than hydrolysis of DOP. It seems that P-regeneration as DOP seems to be a significant mode in regeneration of P via grazing. Further, differences in P cycles in oligotrophic and eutrophic environments should be taken into account for better management of freshwater environments.
상세정보 수정요청해당 페이지 내 제목·저자·목차·페이지정보가 잘못된 경우 알려주세요!
목차
- Abstract
- 1. Introduction
- 2. Nature of DOP
- 3. Hydrolysis of in situ DOP
- 4. Production of DOP
- 5. Conclusion
- Acknowledgements
- References
참고문헌
참고문헌 신청최근 본 자료
UCI(KEPA) : I410-ECN-0101-2013-539-001710584
